Light year is: Distance that light travels in a vacuum in one year, about 9.5 trillion km - which is used to record distances between stars and galaxies.

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Presentation on theme: "Light year is: Distance that light travels in a vacuum in one year, about 9.5 trillion km - which is used to record distances between stars and galaxies."— Presentation transcript:

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Light year is: Distance that light travels in a vacuum in one year, about 9.5 trillion km - which is used to record distances between stars and galaxies

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Light year is:

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Light year is not: Light year is a measure of DISTANCE – NOT TIME!!!!!!

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Light year is:

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SPEED of LIGHT is: Lite Coke Diet Coke

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SPEED of LIGHT is not:

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BIG BANG THEORY is: A theory that states that about 12 billion to 15 billion years ago, the universe began with a huge, fiery explosion.

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BIG BANG THEORY is:

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BIG BANG THEORY is not:

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BIG BANG THEORY is: A theory that states that about 12 billion to 15 billion years ago, the universe began with a huge, fiery explosion.

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BIG BANG THEORY is:

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UNIVERSE is: the totality of everything that exists, including all matter and energy, the planets, stars, galaxies, and the contents of intergalactic space.

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UNIVERSE is:

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UNIVERSE is not:

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UNIVERSE is:

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Galaxy is: Large group of stars, dust and gas held together by gravity; can be elliptical, spiral, and irregular

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Galaxy is:

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Galaxy is not:

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Galaxy is: Irregular Galaxy

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NEBULA is: is an interstellar cloud of dust, hydrogen, helium and other ionized gases. WHERE A STAR IS BORN!

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NEBULA is:

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NEBULA is:

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is an interstellar cloud of dust, hydrogen, helium and other ionized gases. WHERE A STAR IS BORN! NEBULA is:

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NEBULA is:

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STAR is: A huge object in space made up of gas and giving off light and heat from nuclear reactions; the sun is a star

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STAR is:

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STAR is not:

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STAR is:

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MAIN SEQUENCE STAR is:

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MAIN SEQUENCE STAR is: A "main sequence star" is not really a type of star but a period in a stars life. When a star is in "main sequence" it is converting hydrogen into energy. It is then usually called a dwarf star. This is the longest period in a stars lifetime.

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MAIN SEQUENCE STAR is:

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MAIN SEQUENCE STAR not is:

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MAIN SEQUENCE STAR is:

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PLANETARY NEBULA is:

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made up of gas and plasma, they are made by certain types of stars when they die. PLANETARY NEBULA is:

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PLANETARY NEBULA is:

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PLANETARY NEBULA is not:

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PLANETARY NEBULA is:

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Luminosity is:

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a measure of the radiant power emitted by a star.

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Luminosity is:

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Luminosity is not:

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Luminosity is: a measure of the radiant power emitted by a star.

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Luminosity is:

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a measure of the radiant power emitted by a star.

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Hertzsprung-Russell diagram is:

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a scatter graph of stars in which the absolute magnitude (intrinsic luminosity) of stars is plotted vertically against their surface temperature (or corresponding spectral types) Hertzsprung-Russell diagram is:

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Hertzsprung-Russell diagram is:

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Hertzsprung-Russell diagram is not:

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Hertzsprung-Russell diagram is:

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ABSOLUTE MAGNITUDE is:

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a measure of the star's luminosity---the total amount of energy radiated by the star every second.

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ABSOLUTE MAGNITUDE is:

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ABSOLUTE MAGNITUDE is not:

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APPARENT MAGNITUDE is: The apparent brightness of a star observed from the Earth

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APPARENT MAGNITUDE is:

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APPARENT MAGNITUDE is not:

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APPARENT MAGNITUDE is: The apparent brightness of a star observed from the Earth

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APPARENT MAGNITUDE is: the "what you see is what you get" magnitude

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APPARENT MAGNITUDE is: The apparent brightness of a star observed from the Earth

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APPARENT MAGNITUDE is:

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Electromagnetic Spectrum is:

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Electromagnetic Spectrum is: Full range of electromagnetic waves

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Electromagnetic Spectrum is:

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Electromagnetic Spectrum is not:

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Electromagnetic Spectrum is:

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TROUGH is: the lowest part of a wave; the part of a wave with the least magnitude.

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TROUGH is:

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TROUGH is not: Get out of my Trough!

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TROUGH is: the lowest part of a wave; the part of a wave with the l east magnitude.

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TROUGH is:

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the lowest part of a wave; the part of a wave with the least magnitude.

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TROUGH is:

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CREST is:

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the highest part of a wave; the part of a wave with th e greatest magnitude.